W10 Operating System is supported and Eaglesoft products are tested and work well under W10 provided users have full control of their OS.
Note: W10 Security settings in some cases may, like Third Party AV software, actually block access to your Eaglesoft/F1 legitimate purchase license.

We suggest that all Win 10 Users have a close look with full attention to the following: A user wrote:
"I had a similar issue with windows 10. Noticed Windows Problem Reporting popping up in task manger. Turned it OFF. Issue went away." "Control Panel\All Control Panel Items\Action Center\Problem Reporting Settings - Never check for solutions."
Update! Same user now reports that ALL ES Aircraft work well under Win10 when the above precautions are taken!

From the Microsoft Community

Q: Is Microsoft Security Essentials designed to replace Windows Defender?
A: No but if you are running Microsoft Security Essentials, you do not need to run Windows Defender.
Microsoft Security Essentials is designed to disable Windows Defender in order to manage the PC’s real-time protection, including anti-virus, rootkits, Trojans and spyware.

Q: Does installing Microsoft Security Essentials disable Windows Defender
A: Microsoft Security Essentials should disable Windows Defender on Vista and Windows 7 and uninstall it from XP.
In some cases, this does not happen automatically.

Q: What happens if I do not disable or uninstall Windows Defender if I am using Microsoft Security Essentials?
A: If Microsoft Security Essentials and Windows Defender are both running, your system may experience performance degradation and other problems caused by the conflict of two services providing real time protection simultaneously.

I ran into a problem with the latest Win10 update last week. I had used the regedit solution in the Superuser link in the post above about Windows 10 problems over 8 months ago, maybe longer. I am repeating the link below.

So after I had problems with the CJ1+ and the Gen 2 Citation X loading after that WIN 10 update, I was not thinking that the error reporting fix that I had already done was the problem because I had already done it. So I opened regedit and looked and the Error Reporting Disabled Dword was gone. So apparently the WIN 10 update removed it. It was causing both of the Gen 2 planes to take about 10 minutes to load and then kept doing so many pauses after initial load that it was useless. After redoing the Regedit fix again as described in that link both planes started loading again in about 20 to 30 seconds and work fine now.

So the lesson that I learned is that Windows Update can undo something that was already done and working fine. I hope that I remember that lesson.